TW201546414A - Heat exchanger tube - Google Patents

Abstract

Disclosed is a heat exchanger tube for transferring heat due to combustion of a combustor toward an exterior, the heat exchanger tube comprising: an insertion body which is configured by folding up three or more sectors made of aluminum through extrusion molding; and an accommodation body which is configured to accommodate the insertion body so that an inner circumferential surface can be in contact with an outer circumferential surface of the insertion body, thereby maximizing a surface area and improving an efficiency of transferring heat.

Description

Heat exchange tube

The present invention relates to a heat exchange tube, and more particularly to a heat exchange tube which maximizes an effect on the heat generated when a burner such as a boiler is burned in the internal space of the heat exchange tube. And the heat generated by the internal combustion being transferred to the outside of the heat exchange tube.

A heat exchange tube includes an inner insert and an outer container for receiving the inner insert. As shown in Figures 1 and 1A, the inner insert 2 of a conventional heat exchange tube has a structure in which two semicircular sectors are coupled and then housed in the outer container 1, the two semicircles Each of the sectors has a semi-circular cross section.

However, the conventional heat exchange tube having the above structure has a problem of lowering the heat exchange efficiency, and therefore there is a need to maximize the surface area of the inner insert body thereby expanding an area to contact the combustion gas of the burner.

Related reference

Korean Patent Publication No. 10-2013-0098292 (September 4, 2013)

Accordingly, the present invention is directed to solving the above problems, and an aspect of the present invention provides a heat exchange tube in which a surface area of an inner insert body is maximally expanded to be modified The contact with the burner body is such that when the combustion is carried out by a burner such as a steam boiler in the internal space of the heat exchange tube, there is an improved effect for transferring heat generated by the combustion to the outside of the exchange tube.

According to one aspect of the invention, a heat exchange tube for transferring heat generated by combustion of a burner to an outer portion, the heat exchange tube comprising: an insert body, by folding three or more sectors Provided and formed of aluminum by extrusion; and a receiving body configured to receive the insert, such that an inner peripheral surface can contact an outer peripheral surface of the insert.

The embedding body can comprise three sectors, each sector having a central angle of 120°.

The embedding body can comprise four sectors, each sector having a central angle of 90°.

The embedded body may include an intermediate sector, the intermediate sector is located in the middle, and a left sector and a right sector are respectively located to the left and right sides with respect to the middle sector.

100‧‧‧Inlay

110‧‧‧ sector

110a‧‧‧Intermediate sector

110b‧‧‧Left sector

110c‧‧‧right sector

111‧‧‧ elbow

112‧‧‧ Protrusion

200‧‧‧ accommodating body

The above and/or other aspects of the present invention will become apparent from the following description of the exemplary embodiments of the invention. 1A is a cross-sectional view showing a heat exchanger tube according to an embodiment of the present invention; FIG. 2A is a cross-sectional view showing a heat exchanger tube according to an embodiment of the present invention; 3 is a view showing only a sector of a heat exchange tube of FIG. 2; FIG. 4 is a cross-sectional view of a heat exchange tube according to another embodiment of the present invention; FIG. 4A is a view showing the inside of FIG. a structure of an inlay; FIG. 5 is a cross-sectional view of a heat exchange tube according to still another embodiment of the present invention; Fig. 5A shows the structure of the inner insert of Fig. 5.

Hereinafter, exemplary embodiments in accordance with the present invention will be described with reference to the drawings. Also, the terms, expressions, and patent claims used in the following description must be construed as not limiting the meaning of the typical or dictionary definition, but based on the purpose of describing the inventor's own invention in an optimal manner, the inventor can The assumption of the concept of the term is appropriately defined, and corresponds to the meaning and concept of the technical idea of the present invention.

Therefore, the disclosures in the specification and the illustrations shown in the drawings are merely preferred embodiments of the present invention and do not cover all the technical idea of the invention. Thus, it should be understood that these embodiments may be substituted by various equivalents and modifications at the time of the application of the application.

2 is a cross-sectional view of a heat exchange tube according to an embodiment of the present invention; as in a conventional heat exchanger, the heat exchange tube according to the present exemplary embodiment shown in FIG. 2 includes an inner insert 100 and An outer housing 200 for receiving the inner insert 100.

In particular, as shown in FIGS. 2A and 3, the heat exchange tube according to the present exemplary embodiment is different from the conventional heat exchange tube in that the inner insert body 100 includes three sectors having a central angle of 120°. The three sectors in the embedded body 100 have the same structure.

For reference, Fig. 3 is a view showing only a certain sector of a heat exchange tube according to an embodiment of the present invention.

As indicated above, the three sectors 110 are folded to form a cylindrical shape having a circular cross section, wherein each of the sectors 110 has a central angle of 120°.

The embedded body 100 that is folded to have such a cylindrical shape is inserted and accommodated in a housing body 200, so that an outer peripheral surface of the insert body 100 can contact the inner peripheral surface of the housing body 200.

At the same time, the inner peripheral surface of each of the sectors 110 is formed with a plurality of elbows 111, so that heat generated by the combustion performed in the inner space S can be transmitted as much as possible to the containing body 200 in contact with the embedded body 100.

At this time, a plurality of protrusions 112 may be formed on an outer peripheral surface of the elbow 111 of the insert body in order to improve the efficiency of transferring heat from the insert body 100 to the containing body 200.

The above-described inlay 100 and the inlay 100 to be described are made of extruded aluminum with good heat transfer.

In particular, as shown in Fig. 1, the semicircular sectors constituting the conventional inlay 2 are separately and separately formed by extrusion. On the other hand, as shown in Figs. 2, 4 and 5, the sectors constituting the embedded body according to an embodiment of the present invention are manufactured by forming into a single body.

As described above, if the semicircular sectors constituting the conventional embedded body 2 are separately and separately manufactured by extrusion, in order to insert the embedded body 2 into the containing body 1, the conventional semicircular sector is not Easy to assemble. On the other hand, the sectors constituting the embedded body according to an embodiment of the present invention are manufactured by extrusion molding to form a single body, and thus the embedded body 100 can be folded into the embedded body 100 including a plurality of sectors. The manner in which it is rounded is easily inserted into the housing 200.

According to the camping embodiment, as shown in Figures 4 and 4A, the inlay 100 to be inserted into the containing body 200 can include four sectors 110, each having a central angle of 90°. As such, the four sectors 110 can be folded and then inserted into the housing 120.

For reference, Figure 4 is a cross-sectional view of a heat exchange tube in accordance with another embodiment of the present invention.

Similarly, the sector 110 is formed with a plurality of elbows 111 so that heat can be more efficiently transferred from the inlay 100 to the containing body 200, and a plurality of protrusions 112 are formed on the elbow 111 On the outer perimeter.

According to still another embodiment, the embedded body 100 to be inserted into the housing 200 may include three sectors 110, that is, include an intermediate sector 110a in the middle, and a left side on the left and right sides of the intermediate sector 110a, respectively. Sector 110b and a right sector 110c.

For reference, Figure 5 is a cross-sectional view of a heat exchange tube in accordance with yet another embodiment of the present invention.

Similarly, the intermediate sector 110a, the left sector 110b, and the right sector 110c are formed with a plurality of elbows 111, so that heat can be efficiently transferred from the inlay 100 to the containing body 200, and a plurality of protrusions 112 are formed. On the outer peripheral surface of the elbow 111 (see Figures 5 and 5A).

In the illustrated embodiment, the left sector 110b and the right sector 110c are folded toward the intermediate sector 110a and thus formed in a cylindrical shape, and thus the cylindrical embedded body 100 can be inserted and accommodated in the housing 200.

According to an exemplary embodiment, the heat exchange tubes contain three or more sectors that make up the inner embedded body thereby thereby maximizing its surface area and improving the efficiency of transferring heat generated by combustion.

While the present invention has been shown and described, it is understood that those skilled in the art can change in these embodiments without departing from the principles and spirit of the invention. The scope of patents and their equivalents are defined.

100‧‧‧Inlay

200‧‧‧ accommodating body

Claims (6)

A heat exchange tube for transferring heat generated by combustion of a burner, the heat exchange tube comprising: an insert 100 disposed by folding three or more sectors 110, the three One or more are made of aluminum by extrusion; and a receiving body 200 is provided to accommodate the insert 100, so that an inner peripheral surface can contact an outer peripheral surface of the insert 100. A heat exchange tube according to claim 1, wherein the embedded body 100 comprises three sectors 110 each having a central angle of 120°. The heat exchange tube of claim 1, wherein the embedded body 100 comprises four sectors 110 each having a central angle of 90°. The heat exchange tube according to claim 1, wherein the embedded body 100 comprises an intermediate sector 110a located in the middle, and a left sector 110b and a right side respectively located on the left and right sides of the intermediate sector 110a. Sector 110c. The heat exchange tube according to any one of claims 1 to 4, wherein the insert body comprises: a plurality of elbows 111 seated on an inner circumferential surface thereof; and a plurality of protrusions 112 formed on the On one surface of the elbow 111. The heat exchange tube according to claim 1, wherein the plurality of sectors constituting the embedded body 100 are joined by extrusion to form a single body.